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  • how divide herader from binary data

    - by fixo2020
    Hi, I have this code: ofstream dest("test.txt",ios::binary); while (true){ size_t retval = recv (sd, buffer, sizeof(buffer), 0); dest.write(buffer,retval); if(retval <= 0) { delete[] buffer; break;} } Now, the recv() function return 4 bytes each loop right? and buffer contain it, this return all data so, pseudo-header and binary data (image), but I want know how capture only binary data, I know that the end of header are "\n\r" right? but what's are the solution better for make this? I make a function that detect when are "\n\r"? and after how capture binary data? Or, I put all data in memory, and after parse it? but how? I'm desperate :(

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  • Simple bind not working in IE for Radiobutton in jQuery

    - by Jonathan
    Hi this works fine in Firefox, but not IE. What am I doing wrong? Thanks for the help in advance! $(document).ready(function(){ $("#radiodiv").buttonset(); $('#radio1').bind("click", function() { alert('Hello'); }); } <form> <div id="radiodiv"> <input type="radio" id="radio1" name="radio" checked="checked" /><label for="radio1">WaveHeight</label> <input type="radio" id="radio2" name="radio" /><label for="radio2">Current</label> <input type="radio" id="radio3" name="radio" /><label for="radio3">WaveHeightDir</label> </div> </form>

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  • Problem with "not declared in this scope" error

    - by lego69
    I've got: error a1 was not declared in this scope Can somebody please explain why this code causes that? quiz.h #ifndef QUIZ_H_ #define QUIZ_H_ #include "quiz.cpp" class A { private: int player; public: A(int initPlayer); ~A(); void foo(); }; #endif /* QUIZ_H_ */ quiz.cpp #include "quiz.h" #include <iostream> using std::cout; using std::endl; A::A(int initPlayer = 0){ player = initPlayer; } A::~A(){ } void A::foo(){ cout << player; } main function #include "quiz.h" int main() { quiz(7); return 0; } quiz function #include "quiz.h" void quiz(int i) { A a1(i); a1.foo(); }

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  • jQuery accordion expanded

    - by hajder
    I am trying to create an accordion with jQuery from this example http://docs.jquery.com/UI/Accordion The markup is the same, i.e. <div id="accordion"> <h3><a href="#">First header</a></h3> <div>First content</div> <h3><a href="#">Second header</a></h3> <div>Second content</div> </div> And I have script file enqueued correctly, which has the following content: $ = jQuery; $(document).ready(function() { $("#accordion").accordion(); }); But I get this error in the console output TypeError: 'undefined' is not a function (evaluating '$("#accordion").accordion()') The result being all divs are expanded, i.e not clickable.

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  • Wordpress php: Way to test if pages are children of a parent page?

    - by Erykan
    Hi - Working on my first Wordpress site so I'm sure this is a really basic question. I'm struggling to write a conditional php statement that performs a certain action when a page is a child of a parent page. For example, rather than just specifying one page, as below, I'd like to specify all pages that have the 'About Us' page as a parent: <?php if (is_page('About Us')) echo 'Hello World!'; ?> I've tried the "child_of" function but it wasn't as straightforward as I'd hoped. When I use the below, I get a syntax error - probably just me not knowing how to use the function: <?php if (child_of('About Us')) echo 'Hello World!'; ?> Any suggestions? Thanks!!

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  • Getting URL of executing JavaScript file (IE6-7 problem mostly)...

    - by TooTallNate
    Hey all, I've been trying to throw together a generic function that retrieves the absolute URL of an executing JavaScript file on a web page: http://gist.github.com/433486 It works great in almost all the browsers I've tested (Firefox, Chrome, Safari, Opera v10 at least, and IE 8). It seems to fail, however, in IE 6 and 7. The callback function gets executed, but the retrieved name is simple the URL to the main HTML page, not the JavaScript file. So all I'm really asking is if there's some other way of getting the URL of the current JavaScript file (which could be IE 6 and 7 specific)? Thanks in advance!

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  • ASP.NET MVC - Custom object instantiation / providing with the Modelbinder?

    - by ropstah
    Is it possible to customize the object initiation / providing with the default ASP.NET MVC Modelbinder? <AcceptVerbs(HttpVerbs.Post)> _ Function EditObject(id As int, <Bind(Exclude:="Id")> obj As BLL.Object) As ActionResult End Function I would like to 'provide' obj to the modelbinder. (i don't want the Modelbinder to use New() and instantiate obj, but I want to deliver the object from a custom repository.) Is this possible? Edit: The loading from the repository should be done based on the id parameter of EditObject...

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  • CSS and JQuery: spaces inside image name break code of url()

    - by Shyam
    Hi, I have a page that is supposed to display a larger version of an image when hovered over a thumbnail. I have a 'div' with an ID and the JQuery code is as following: $(document).ready(function(){ $('img').hover(function() { var src = $("#im" + this.id).attr("src"); $('#viewlarge').css('backgroundImage','url(' + src +')'); return false; }); }); The images I use, are generated by a Ruby script that "generate" an image with a similar, yet different id. However, sometimes, photo's are uploaded that have "spaces" inside. My developer tools tell me that the background-image is not set correctly, yet the image path is correct and the browser don't have problems finding the image. My question is, can I somehow sanitize the url 'src', so spaces won't be a problem? I am aware of doing this server side, yet I would like to know how to do this with JQuery/JS too. Thanks!

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  • Why does this basic class not work?

    - by kalaba2003
    I could not understand why my class does no t work. Returns nothing. Is there any mistake? class User { public $first_name; public $last_name; public function full_name() { if(isset($this->first_name) && isset($this->last_name)) { return $this->first_name . " " . $this->last_name; } else { return "No name!"; } } public function assign () { $this->first_name = "Name"; $this->last_name = "Surname"; } } $user = new User(); $user->assign(); $user->full_name(); ?>

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  • Running a piece of code for a certain amount of time in C#?

    - by Hazem
    Hi I am working on a robot that is capable of motion detection using a webcam. I am doing this in C# The robot moves too fast, so I want to turn it on/off at short time intervals in order to reduce its speed. For example, it will start the engine then wait 0.5 second and turn it off, this cycle repeats every 2 seconds. This way, its speed wont be too fast. I would like to include this in a single function called Move() I just don't know how to do this, especially because my motion detection code runs like 20 times a second. Depending on the position of the obstacle, I may need to disable the Move() function and activate other functions that let the robot move into other directions. Any ideas/suggestions on where am I supposed to start? Thanks a lot!

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  • Override existing AS3 classes

    - by purga
    For a custom derived class "Vector2" from flash.geom.Point, when trying to override the clone() method (similar to add(), subtract() methods that will return the type itself), it will always complain about incompatible overriding 'cuz the return type has been altered from "Point" to "Vector2". import flash.geom.Point; public class Vector2 extends Point { //Constructor is good public function Vector2(x:Number = 0, y:Number = 0) { super(x,y); } // Error: Incompatible overriding override public function clone():Vector2 //return type has to be "Point" { return new Vector2(this.x , this.y); } } How can we correctly reuse/override the methods provided by the super classes as supposed to create our own one (e.g. : a new clone1() method), or simply we just can't? Thanks.

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  • trying to understand some codes related to window.onload in js

    - by user2507818
    <body> <script language="javascript"> window.tdiff = []; fred = function(a,b){return a-b;}; window.onload = function(e){ console.log("window.onload", e, Date.now() ,window.tdiff, (window.tdiff[1] = Date.now()) && window.tdiff.reduce(fred) ); } </script> </body> Above code is taken from a site. In firefox-console, it shows: window.onload load 1372646227664 [undefined, 1372646227664] 1372646227664 Question: For window.tdiff->[undefined, 1372646227664], why not:[], because when runs to code:window.tdiff, it is still an empty array? For window.tdiff.reduce(fred)->1372646227664, window.tdiff = [undefined, 1372646227664], undefined - 1372646227664, should be NaN, why it shows 1372646227664?

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  • Force an array to recalcuate length after sort

    - by Rhyono
    If you take an array and do the following: arr = []; arr[100] = 1; The length will be 101, which makes sense due to 0-99 being set as undefined Now if we sort that array: arr.sort() it will look like this: [1, undefined x100] since keys are not preserved. However, the length is still 101, since the undefined have all been moved to the end, instead of removed. Is this behavior intentional and if so: is there a built-in function that removes undefined and recalculates and why is it intentional? I am not asking how to write my own function to recalculate length. A sorted array's length can easily be forced with for (x = 0; arr[x] != undefined; x++);arr.length = x;

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  • (Strange) C++ linker error in constructor

    - by Microkernel
    I am trying to write a template class in C++ and getting this strange linker error and can't figureout the cause, please let me know whats wrong with this! Here is the error message I am getting in Visula C++ 2010. 1>------ Rebuild All started: Project: FlashEmulatorTemplates, Configuration: Debug Win32 ------ 1> main.cpp 1> emulator.cpp 1> Generating Code... 1>main.obj : error LNK2019: unresolved external symbol "public: __thiscall flash_emulator<char>::flash_emulator<char>(char const *,struct FLASH_PROPERTIES *)" (??0?$flash_emulator@D@@QAE@PBDPAUFLASH_PROPERTIES@@@Z) referenced in function _main 1>C:\Projects\FlashEmulator_templates\VS\FlashEmulatorTemplates\Debug\FlashEmulatorTemplates.exe : fatal error LNK1120: 1 unresolved externals ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ========== Error message in g++ main.cpp: In function âint main()â: main.cpp:8: warning: deprecated conversion from string constant to âchar*â /tmp/ccOJ8koe.o: In function `main': main.cpp:(.text+0x21): undefined reference to `flash_emulator<char>::flash_emulator(char*, FLASH_PROPERTIES*)' collect2: ld returned 1 exit status There are 2 .cpp files and 1 header file, and I have given them below. emulator.h #ifndef __EMULATOR_H__ #define __EMULATOR_H__ typedef struct { int property; }FLASH_PROPERTIES ; /* Flash emulation class */ template<class T> class flash_emulator { private: /* Private data */ int key; public: /* Constructor - Opens an existing flash by name flashName or creates one with given FLASH_PROPERTIES if it doesn't exist */ flash_emulator( const char *flashName, FLASH_PROPERTIES *properties ); /* Constructor - Opens an existing flash by name flashName or creates one with given properties given in configFIleName */ flash_emulator<T>( char *flashName, char *configFileName ); /* Destructor for the emulator */ ~flash_emulator(){ } }; #endif /* End of __EMULATOR_H__ */ emulator.cpp #include <Windows.h> #include "emulator.h" using namespace std; template<class T>flash_emulator<T>::flash_emulator( const char *flashName, FLASH_PROPERTIES *properties ) { return; } template<class T>flash_emulator<T>::flash_emulator(char *flashName, char *configFileName) { return; } main.cpp #include <Windows.h> #include "emulator.h" int main() { FLASH_PROPERTIES properties = {0}; flash_emulator<char> myEmulator("C:\newEMu.flash", &properties); return 0; }

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  • Slide Effect happening too many times

    - by Abs
    Hello all, I call this functions on onmouseover and onmouseout for several divs. //Takes effect on divs with id, 62,63,64,65... function slide_it(id){ $('#options_'+id).slideToggle('slow'); } The problem is that if I move my mouse over and then mouse out, then again, mouse over and then mouse out. If I do this several times, the slide effect happens the same number of times I moved my mouse over and out of the div, as expected. But I can't figure out how I can do this once? I can set a variable, but I have several divs that this function is used by and I can't think of a simple way of doing this rather than storing things into an array, but this is messy! I really appreciate any help on this that is simple to implement! Thanks all for any help

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  • how to format (css) data loaded with $.load or $.get or $.ajax?

    - by user356981
    I need to load a piece of content html when an link in a menu is clicked; once loaded, the css format is not working properly, how do I re-format (re-styling via css) the loaded code? My code is: $('a', mainMenu).click(function() { ref = this.href; $('#content').load(ref + ' #content' function() { url = '../css/jquery-ui-1.8.2.custom.css'; //styling here if (document.createStyleSheet) document.createStyleSheet(url); else $('<link rel="stylesheet" type="text/css" href="'+url+'"/>').appendTo('head'); }); }) is it another way to load and re-style html (plugins perhaps)? thanks in adv'n.

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  • What is the meaning of this pData[1+2*i]<<8|pData[2+2*i] C++ syntax?

    - by user543265
    what is the meqaning of pData[1+2*i]<<8|pData[2+2*i] where pData[ ] is the array containing BYTE data? I have the following function in the main function { .......... .... BYTE Receivebuff[2048]; .. ReceiveWavePacket(&Receivebuff[i], nNextStep); .... ... .. } Where Receivebuff is the array of type BYTE. ReceiveWavePacket(BYTE * pData, UINT nSize) { CString strTest; for(int i = 0 ; i < 60 ; i++) { strTest.Format("%d\n",(USHORT)(pData[1+2*i]<<8|pData[2+2*i])); m_edStatData.SetWindowTextA(strTest); } } I want to know the meaning of ",(USHORT)(pData[1+2*i]<<8|pData[2+2*i]). Can any body please help me?

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  • Works in Firefox but not IE

    - by Abs
    Hello all, I make use of the following to find a string in a particular element, if it exists, tick a checkbox. This works great on Firefox but not internet explorer (8). I am having trouble finding why. $.fn.searchString = function(str) { return this.filter('*:contains("' + str + '")'); }; var myID = $('div').searchString(files_array[i].substr(-4)); alert(myID);//[object object] alert(myID.children());//[object object] myID.children().attr('checked', true);//does not tick checkbox alert(myID.children().attr('checked'));//undefined Does IE not like the children() function? Thanks all for any help

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  • Why is Python 3.1 throwing a SyntaxError when printing after loop? [resolved]

    - by bubersson
    Hi, I'm trying to run this snippet in Python 3.1 console and I'm getting SyntaxError: >>> while True: ... a=5 ... if a<6: ... break ... print("hello") File "<stdin>", line 5 print("hello") ^ SyntaxError: invalid syntax >>> (This is just shortened code to make a point.) Am I missing something? Is there some other Magic I don't know about? Thanks for your help (since this is my first StackOverflow question and I'm not a native English speaker)

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  • collapse row by row with (jQuery)

    - by Mini
    I want to hide/show a lot of contents by id Here is an example: <a href="#" class="click"> title here </a> <p class="content" id="1"> text here ... </p> <a href="#" class="click" id="2"> another title here </a> <p class="content"> another text here ... </p> I can add an ID into my HTML code. How Can I get it by jQuery? The jQuery lines: <script type="text/javascript"> $(document).ready(function(){ $('.content').hide(); $('.click').click(function() { $('.content').slideToggle(500); return false; });

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  • How to change a label's text after loading a html into a dialog

    - by Salsa
    I am opening a modal dialog by loading a form into it. After loading the form, I want to change it's title and one of it's fields' label. I can change the label's text, but after the function returns, the label's text turns back to it's original one. Is it possible to make this kind of change and if so, how? The HTML: <form action="testing.php" method="POST" id="example-form"> <fieldset> <label for="link" id="link-label"></label> </fieldset> </form> The javascript: $(".bt-example").button().click(function() { $('#example-dialog').load('form.html').dialog('open'); $('.ui-dialog-titlebar').text("THIS WORKS!"); $('#example-form #link-label').text("CHANGES AT FIRST, BUT GOES BLANK LATER"); $('#example-dialog').removeClass('invisible'); });

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  • Getting the username entered by the user after he hits submit on the login form, irrespective of whe

    - by simonr
    Duplicate of http://stackoverflow.com/questions/2803425 Hello, When a user enters his login information and hits submit, irrespective of whether the login credentials entered by the user were correct or not, i want my function to be called. In this function, i need the username entered by the user. I think i cannot use the login op of hook_user because its called only when the user has successfully logged in. So, how can i achieve the above functionality ? Some sample code would be really appreciated. Please help. Thank You.

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  • Subscribe to the 'complete' event of a .load() on a specific DOM element?

    - by DustMason
    Hi all, I already use both .live() and .bind('ajaxComplete') to accomplish certain related tasks, but I have found myself wanting to be able to listen for the 'complete' event of a specific DOM element which will call jQuery's .load() at various times. In this situation I don't want to listen for ALL complete events globally (unless someone can show me how to get the proper target from the event object returned by 'ajaxComplete'). I would like to be able to do something like this: $('.selector').load('url.php',{data:data},function(){ ... }); and then somewhere else, attach a handler to listen and execute some other code whenever that ajax call fires and completes: $('.selector').bind('complete',function(){ ... }); is there any way to do this? or must i always make use of the 'complete' event within the context of the load() method?

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  • class T in c++ (your definition)

    - by JohnWong
    The one advantage of using class T in c++ is to reduce the time to redefine data types in a function, if those data types are defined in other function, for example, in int main. template <class T> void showabs(T number) { if (number < 0 ) number = -number; cout << number << endl; return 0; } int main() { int num1 = -4; float num2 = -4.23f; showabs(num1); showabs(num2); return 0; } So in this case, without class T, for each data type, we have to add its corresponding data-type condition, that is, another set of if statement for int, and another one for float. Am I correct?

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